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| Number | Title | Issue Date |
| 7880027 | Method for producing unsaturated carboxylic acids and nitriles The present invention relates to an improved alkane (amm)oxidation process in which sulfur-bearing impurities present in the alkane feedstock are removed upstream from the (amm)oxidation reaction. ... | 02/01/2011 |
| 7754910 | Mixed metal oxide catalysts for the ammoxidation of propane and isobutane A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon wi... | 07/13/2010 |
| 7645897 | Process for producing metal oxide catalyst A process for producing a high-performance catalyst for use in a reaction for acrylic acid production from propane or propylene through air oxidation, is provided. A process for producing a metal oxide catalyst having the following composition formula, the process c... | 01/12/2010 |
| 7553986 | Process for the selective (amm)oxidation of lower molecular weight alkanes and alkenes An improved process for the production of unsaturated carboxylic acids and unsaturated nitrites from their corresponding C3 to C5 alkanes, or mixtures of C3 to C5 alkanes and alkenes, that involves a multi-stage reaction s... | 06/30/2009 |
| 7531681 | Process for the ammoxidation of propane and isobutane A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon wi... | 05/12/2009 |
| 7495121 | Mo- and V-containing multimetal oxide materials Multimetal oxide materials which contain Mo and V and, if required, one or more of the elements from the group consisting of lanthanides, transition elements of the Periodic Table of the Elements and elements of the third to sixth main group of the Periodic Table of... | 02/24/2009 |
| 7442290 | Mesoporous aluminum oxide, preparation and use thereof Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high the... | 10/28/2008 |
| 7371883 | Catalytic oxidation process An improved single-step catalytic vapor phase (amm)oxidation process for the conversion of one or more C2-C8 alkanes to one or more oxidation products, including unsaturated carboxylic acids and unsaturated nitriles, whereby a higher yield of t... | 05/13/2008 |
| 7326391 | Process for recovery and recycle of ammonia from a vapor stream A process for the recovery of unreacted ammonia from the effluent from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate in at least two stages, thereby capturi... | 02/05/2008 |
| 7326668 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield and used to produce. ... | 02/05/2008 |
| 7319179 | Method for the oxidative dehydrogenation of ethane The invention relates to a method for the oxidative dehydrogenation of ethane. The inventive method is characterized in that it consists of bringing the ethane into contact with the catalyst containing Mo, Te, V, Nb and at least a fifth element A which is selected f... | 01/15/2008 |
| 7304014 | Modified catalysts and process Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the mod... | 12/04/2007 |
| 7285679 | Oxidation of alkanes Alkanes are oxidised to oxygenates such as carboxylic acids with molecular oxygen employing a two component catalyst system which uses a liganded heavy metal compound and a mixed metal oxide. ... | 10/23/2007 |
| 7250118 | Agglomerated nanoparticles having a rutile-like crystalline phase Agglomerated nanoparticles including Ti/Sb mixed oxide nanoparticles having a rutile-like crystalline phase content of at least 20 weight percent, wherein the nanoparticles have at least one organic moiety bound to the nanoparticle surface, and wherein the weight ra... | 07/31/2007 |
| 7229946 | Catalyst composition for the selective conversion of alkanes to unsaturated carboxylic acids, method of making and method of using thereof A catalyst composition having the formula: Mo1VaSbbNbcMdOx wherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is de... | 06/12/2007 |
| 7208445 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield. ... | 04/24/2007 |
| 7122707 | Method for producing an annular shell catalyst and use thereof for producing acrolein Coated catalysts which are suitable for the gas-phase catalytic oxidation of propene to acrolein are prepared by a process in which rings are used as supports and water is used as a binder. ... | 10/17/2006 |
| 7105700 | Process for the synthesis of mixtures of methane diphenyl diamine and its higher homologues with a controlled isomer distribution A process for preparing methane diphenyl diamine (MDA) or a mixture of methane diphenyl diamine (MDA) and its higher homologues with a controlled isomer distribution using a modified zeolite having “shape selectivity”. The mixture contains compounds having the f... | 09/12/2006 |
| 7098166 | Catalyst for preparing fluorine-containing alcohol compound and a process for preparation of fluorine-containing alcohol compound A process for preparing a fluorine-containing alcohol compound, the process comprising the step of reacting water with a halogenated fluorine compound in the presence of a catalyst for preparing a fluorine-containing alcohol compound, the catalyst obtained by suppor... | 08/29/2006 |
| 7091377 | Multimetal oxide materials A multimetal oxide material contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and promoters and has a specific X-ray diffraction pattern. Moreover, such a multimetal oxide material is used as a catalyst for heterogene... | 08/15/2006 |
| 7087551 | Catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase Disclosed is an oxide catalyst comprising an oxide represented by the formula Mo1VaNbbXcYdZeQfOn (wherein: X is at least one element selected from the group consisting of Te and ... | 08/08/2006 |
| 7071140 | Catalyst for the manufacture of acrylonitrile A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potas... | 07/04/2006 |
| 7049466 | Recycle process A method for producing an unsaturated carboxylic acid comprises: (a) contacting, in a reaction zone, an alkane with a catalyst containing a mixed metal oxide, under conditions which produce a product gas comprising the unsaturated carboxylic acid, unreacted alkane a... | 05/23/2006 |
| 7038080 | Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid A process for the heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a multimetal oxide material having a specific structure, which contains the elements Mo and V, at least one of the elements Te and Sb and at least one of the ele... | 05/02/2006 |
| 7038082 | Preparation of a multimetal oxide material A process for preparing a multimetal oxide material which contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and if desired promoters and has a specific X-ray diffraction pattern, in which process the last process step... | 05/02/2006 |
| 7018951 | Annealed and promoted catalyst A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member sel... | 03/28/2006 |
| 7015173 | High temperature mixing A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an u... | 03/21/2006 |
| 7005403 | Catalyst comprising a support body and a catalytically active oxide material applied to the surface of the substrate A coated catalyst whose coating of active composition is a multimetal oxide comprising the elements Mo, V and Te and/or Sb can be used for the gas-phase catalytic oxidation of propane to acrylic acid. ... | 02/28/2006 |
| 6989460 | Methods for producing unsaturated carboxylic acids and unsaturated nitriles Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitriles are produced by the vapor phase catalytic oxidation of a... | 01/24/2006 |
| 6982342 | Ammoxidation of carboxylic acids to a mixture of nitriles A process for increasing the yield of acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a carboxylic acid, ammonia and air into a reaction zone containing a... | 01/03/2006 |
| 6965050 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield. ... | 11/15/2005 |
| 6965046 | Catalyst for the manufacture of acrylonitrile A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following emp... | 11/15/2005 |
| 6962946 | Nanoparticles having a rutile-like crystalline phase and method of preparing same Nanometer-sized particles comprise a mixed oxide of titanium and antimony and are characterized by rutile-like crystal phases. The particles are easily prepared by hydrothemal processing, and may be used as colloids, or in various compositions and articles. ... | 11/08/2005 |
| 6924387 | Solid catalyst with core-shell catalytic phase and a method of preparation thereof The present invention relates to a sold catalyst for manufacturing of a nitrile compound and a method of preparation thereof. More particularly, this invention relates to the solid catalyst expressed by the following formula (1): BiaAaBb | 08/02/2005 |
| 6914150 | Mixed-metal oxide catalysts and processes for preparing the same An improved catalyst comprising a mixed metal oxide is prepared by the use of a sol-gel technique. The catalyst is useful for the conversion of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid by vapor phase oxidation, or to an u... | 07/05/2005 |
| 6914029 | Polyoxometallate catalysts and catalytic processes An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activate... | 07/05/2005 |
| 6894183 | Method for gas—solid contacting in a bubbling fluidized bed reactor The present invention relates to a method for gas-solid contacting in a bubbling fluidized bed reactor by: (a) introducing into a reactor with bed length to bed diameter ratio below about 5.0, a primary gas consisting essentially of reactant(s) of the r... | 05/17/2005 |
| 6825380 | Promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken... | 11/30/2004 |
| 6777571 | Mixed metal oxide catalyst A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an u... | 08/17/2004 |
| 6747168 | Halogen promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken... | 06/08/2004 |
